Annie L. Heermans, MD

Medicare activity in 2024

Official CMS public-use data for Annie L. Heermans, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Most frequent services

1. Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)132 services
2. Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)80 services
3. Biopsy of large bowel using a flexible endoscope (45380)58 services
4. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)58 services
5. Balloon dilation of esophagus, stomach, and/or upper small bowel using a flexible endoscope, less than 3.0 cm (43249)29 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

• High cholesterol61%
• High blood pressure56%
• Arthritis41%
• Anxiety24%
• Depression22%
• Osteoporosis22%

Hospitals where Annie L. Heermans works

Medicare's Facility Affiliation Data lists Annie L. Heermans at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

• Essentia Health DuluthDuluth, MN · Acute Care Hospital · Emergency services: not listed by Medicare · CCN 240019
• Essentia Health St Mary's Medical CenterDuluth, MN · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 240002
• Logan Health Medical CenterKalispell, MT · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 270051
• St Marys Hospital SuperiorSuperior, WI · Critical Access Hospital · Emergency services: listed by Medicare · CCN 521329

Practice locations

Addresses where Annie L. Heermans is enrolled with Medicare (CMS data updated October 2, 2026).

• 420 E 1st StDuluth, MN 55805 (218) 786‑8364

Group practices

Medicare enrollment lists Annie L. Heermans as a member of this group (CMS data updated October 2, 2026).

• The Duluth Clinic Ltd1,144 clinicians in the group

Specialties

• Gastroenterologyprimary

Find other Gastroenterology doctors in Minnesota →

Other gastroenterologists in Duluth

Clinicians with the same Medicare primary specialty in Duluth, MN — not a recommendation.

• Max C. Miranda, MD
• Kimberly C. Zibert, DO
• Panagiotis Panagiotakis, MD
• Franklin Goldwire, MD
• Lisa M. Jones, MD
• Daniel D. Cornett, MD
• Reena S. Patel, MD
• Triston W. Berger, MD

All gastroenterologists in Duluth →

Other clinicians in The Duluth Clinic Ltd

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

• Monica B. McDevitt
• Thomas W. Swedberg
• Yuliang P. Hu, MD
• Hannah Biesiada
• Lana R. Jacobson, NP
• Theresa L. Hanson, CNA

Clinician information

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
6. Medicare Care Compare — official Medicare tool to look up clinicians